definition 112 causes, effects and control measures of

Landslides and mitigation measures

Landslides are recurring phenomena in the Hi-

malayan region. In the recent years however

intensive construction activity and the destabi-

lizing forces of nature have aggravated the prob-

lem. Landslides occur as a result of changes on

a slope, sudden or gradual, either in its compo-

sition, structure, hydrology or vegetation. The

changes can be due to geology, climate, weath-

ering, land-use and earthquakes.

A significant reduction in the hazards caused

by landslides can be achieved by preventing the

exposure of population and facilities to landslides

and by physically controlling the landslides. De-

velopmental programs that involve modification

of the topography, exploitation of natural re-

sources and change in the balance load on the

ground should not be permitted. Some critical

measures that could be undertaken to prevent

further landslides are drainage measures, ero-

sion control measures such a bamboo check

dams, terracing, jute and coir netting and rock-

fall control measures such as grass plantation,

vegetated dry masonry wall, retaining wall and

most importantly preventing deforestation and

improving afforestation.

Disasters cannot be totally prevented. However

early warning systems, careful planning and pre-

paredness on part of the vulnerable community

would help in minimizing the loss of life and

property due to these disasters.

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